Grade Calculator
Grade Calculator — Weighted Course Grade
Calculate your overall course grade from assignments, quizzes, and exams
| Item | Score | Out of | Percentage | Weight | Weighted Contribution |
|---|
Click to Calculate
Add every graded item for your course, then click Calculate Grade — your overall result appears instantly below.
Weighted Average
Each item is weighted by the percentage you assign it, so exams and finals count more than small quizzes.
Item-wise Breakdown
Expand the breakdown table to see exactly how each item contributes to your final overall grade.
Understanding Your Grade
What is a Grade Calculator and How Does it Work?
A complete guide to calculating your weighted overall course grade
A grade calculator works out your overall mark in a course by combining every graded item — homework, quizzes, labs, midterms, projects, and exams — into a single percentage. Unlike a GPA calculator, which averages letter grades across whole courses using credit hours, a grade calculator looks inside a single course and averages individual assignment scores using whatever weighting scheme your instructor has set, such as "Homework 20%, Quizzes 15%, Midterm 25%, Final Exam 40%."
This makes it the tool to reach for whenever a syllabus lists category weights and you want to know where you currently stand, or whether a recent low score has pulled your grade down more than you expected. Because every item is entered with its own score, total points, and weight, the calculator can handle courses with any number of categories and any mix of point scales.
Each item's raw score is first converted to a percentage, then multiplied by its weight before being summed and divided by the total weight used:
For example, with Homework scoring 88% at 20% weight, Quizzes scoring 76% at 15% weight, a Midterm scoring 82% at 25% weight, and a Final Exam scoring 79% at 40% weight, the weighted sum works out to 80.85, and since the weights already total 100, the overall grade is 80.85% — a solid B. This calculator performs that same weighted calculation automatically, and will also normalize the result if your weights happen to add up to something other than 100%, so a partially graded course still produces an accurate running average.
This calculator converts your overall percentage to a letter grade using the common US institutional scale shown below. Many schools use a finer-grained version with plus and minus grades — check your syllabus for your instructor's exact cutoffs.
| Percentage Range | Letter Grade | Typical Meaning |
|---|---|---|
| 90 – 100% | A | Excellent |
| 80 – 89% | B | Good / Above Average |
| 70 – 79% | C | Satisfactory / Average |
| 60 – 69% | D | Passing, Below Average |
| Below 60% | F | Failing |
A simple average treats every score equally, regardless of how many points it was worth or how important it was to your instructor. A weighted average — what this calculator computes — instead reflects how much each category actually counts toward your final grade. This matters a great deal in practice: a student who aces every quiz but underperforms on a 40%-weighted final exam can end up with a noticeably lower overall grade than the quiz scores alone would suggest, because the final simply carries more influence over the outcome.
A category worth 40% of the grade has far more influence than one worth 5%, even if your scores in the smaller category are perfect.
Entering only the items graded so far gives a running grade for work completed; remember it can still shift once remaining items are scored.
Some instructors drop your lowest quiz or homework score before weighting — leave that item out of the calculator if your syllabus allows drops.
Curves and bonus points are usually applied after the weighted average is computed, so add them separately once you have your base result.